碩士 / 國立臺灣師範大學 / 生命科學研究所 / 95 / The purpose of this study is to understand potential factors impact on planktonic community respiration (CR) and organic carbon cycle in the water column of coral reef ecosystem in the Nan-Wan Bay, southern Taiwan. Results showed that CR varied between 1.7~ 213 mg C m-3 d-1 during study period. Further analysis showed that the rate was mainly determined by biomass and production of planktonic community, especially phytoplankton. This assumption can be evident by significant relationships observed between integrated values over euphotic zone of CR versus chlorophyll a (Chl-a; 1.8~67 mg Chl m-2) and primary production (PP; 43~569 mg C m-2 d-1; all p < 0.05). In addition, Results also showed that integrated bacterial biomass (BB; 11~1313 mg C m-2) and production (BP; 18~823 mg C m-2 d-1) were significantly regressed against both dissolved and particulate organic carbon (all p<0.01). It suggests that growth of heterotrophic bacteria in this coral reef system might be limited by the amount of organic substrates. The mean ratio of primary production to community respiration (i.e., P/R ratio) was 0.38 ± 0.51, and this indicates that the ecosystem of water column in the Nan-Wan Bay is heterotrophic. This result also suggests that allochthonous organic carbon is needed to support the organic carbon consumption, and organic exudates from the benthos, e.g., corals, might be the most important source in this coral reef ecosystem.
| Identifer | oai:union.ndltd.org:TW/095NTNU5105030 |
| Date | January 2007 |
| Creators | You-Chun Miao, 苗祐軍 |
| Contributors | Chung-Chi Chen, 陳仲吉 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 55 |
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